CN103733420A - Method for controlling temperature inside lithium battery electric core - Google Patents
Method for controlling temperature inside lithium battery electric core Download PDFInfo
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- CN103733420A CN103733420A CN201180072510.4A CN201180072510A CN103733420A CN 103733420 A CN103733420 A CN 103733420A CN 201180072510 A CN201180072510 A CN 201180072510A CN 103733420 A CN103733420 A CN 103733420A
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/13—Electrodes for accumulators with non-aqueous electrolyte, e.g. for lithium-accumulators; Processes of manufacture thereof
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/40—Separators; Membranes; Diaphragms; Spacing elements inside cells
- H01M50/409—Separators, membranes or diaphragms characterised by the material
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/052—Li-accumulators
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/65—Means for temperature control structurally associated with the cells
- H01M10/654—Means for temperature control structurally associated with the cells located inside the innermost case of the cells, e.g. mandrels, electrodes or electrolytes
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/65—Means for temperature control structurally associated with the cells
- H01M10/659—Means for temperature control structurally associated with the cells by heat storage or buffering, e.g. heat capacity or liquid-solid phase changes or transition
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/40—Separators; Membranes; Diaphragms; Spacing elements inside cells
- H01M50/409—Separators, membranes or diaphragms characterised by the material
- H01M50/443—Particulate material
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/058—Construction or manufacture
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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Abstract
Disclosed in the present invention is a method for controlling a temperature inside a lithium battery electric core in the invention. The method is characterized in stabilizing the temperature inside the electric core by mean of coating phase change materials on the surface of negative electrode plates or separators of the electric core. When the temperature reaches the a phase change temperature, phase change materials may absorb heat energy and make the temperature inside the electric core stable in a set temperature of phase change materials for a long time. Meanwhile the system has the advantage of keeping the electric group warmer in a low temperature environment. The invention creates a new concept of phase change materials for controlling a square electric core temperature without energy consumption. The invention enhances a square large capacity electric core safety and service life, extends the electric core application environment temperature range, and has a broad application prospect in civil, aerospace, military and other areas.
Description
This application claims submit Patent Office of the People's Republic of China on June 9th, 2011 for a kind of method for realizing lithium battery electric core internal temperature control, Application No. 201110153479.9, a kind of priority of the Chinese patent application of entitled " method for realizing lithium battery electric core internal temperature control ", entire contents are hereby incorporated by reference in the application.Technical field
The present invention relates to battery cooling technology field, more particularly to a kind of method for realizing lithium battery electric core internal temperature control.Background technology
1st, the relation of battery core life-span and temperature
Because battery core can produce a large amount of heat energy in charge and discharge process, battery core temperature constantly soaring consequence can be caused in the case of not external cooling mechanism.Mass data shows that its life-span can drop to 1/14 at 25 degree Celsius when battery core temperature is maintained at 60 degree Celsius for a long time.So temperature control, which is lithium battery technology, is able to wide variety of core, it is also to reduce the key of its use cost.
The purpose of battery thermal management is to ensure that battery is run within the scope of certain temperature and uses, and prevents from damaging battery because battery temperature is too high or reducing the service life of battery；And keep each single battery core temperature to reach equilibrium as far as possible, improve performance and the life-span of battery.
2. battery temperature control and the type of cooling
In the heat management system of battery, research at present is more concerned with the problem of how battery core group radiates.But in the case of environment temperature is relatively low, battery energy storage reduction, the problem of needing also exist for considering how to lift battery own temperature by battery preheating technology, so as to ensure the performance of battery at low temperature.The temperature controlled common method of current battery has：Thermal resistance heating, gas, fluid circulation heating etc..Although the present invention is cooled to main purpose with battery core, also there is function at low ambient temperatures for battery thermal, so specially pointing out herein.
Battery cooling system can be divulged information using air and liquid medium, cooled down, and can also be made in addition
Phase-change material is such as used with the heat accumulation mode of insulating materials.Therefore, its type of cooling is mainly had by heat transfer medium to divide：Gas cooling, liquid cooling and phase-change material cooling.
Gas cooling can be divided into free convection cooling and forced-air convection cooling.Free convection cooling method typically refers to directly take away the heat that the use process of battery is produced using natural wind without using any external auxiliary energy.This method is simple and easy to apply, and cost is low.But larger area of dissipation is needed on battery and shell encapsulation design, and cooling effect is poor.Forced-air convection cooling is by installing local radiator or fan in battery container suitable location within, it is possible to controls the switch and rotating speed of fan to carry out battery according to battery temperature and heating situation and cools down in real time.This method is practical, efficiency high, but for large-scale lithium battery, because a large amount of battery cores are arranged closely together, greatly reduces area of dissipation, therefore be only inadequate with air cooling.
Liquid cooling, because conventional its ratio of heat transfer coefficient air of coolant is much higher, and liquid boundary layer is thinner, there is higher conductivity.It is demonstrated experimentally that liquid cooling can not only significantly reduce the too high temperature of battery, battery mould Temperature Distribution can also be made more uniform.
Phase-change material is cooled down, and its method mainly fills phase-change material between totally enclosed modular battery monomer, using phase-change material coolant mechanism come work.Gasification or solid of the refrigerant under low pressure, low temperature fusion process or sublimation process at low temperature, absorb heat, to reach the purpose of cooling to cooled object.The heat that it sends when can also be electric discharge is stored in the form of latent heat, is discharged when being worked under charging or terribly cold environment.This current cooling means is only applied to cylindrical cell, yet there are no the application in square battery core.
3. phase-change material
Phase-change material (PCM-Phase Change Material) is can be by the energy storage material that can be to utilize of certain forms.It is mainly made up of main heat accumulation agent, transformation temperature regulator, the anti-components such as thermit powder, anti-phase separation agent, phase transformation accelerator of crossing.
Phase-change material species is a lot, from stored energy the characteristics of in terms of, be divided into heat accumulating and the storage class of cold material two.In terms of the mode of energy storage material energy storage, sensible heat energy storage, hidden heat energy storage and the chemical reaction class of energy storage 3 can be divided into.Wherein, hidden heat energy storage is that come heat accumulation, energy storage density is big using the latent heat of phase change of phase-change material, and heat-storing device is simple, heat accumulating during small volume, and heat accumulation
Approximately constant temperature, can relatively easily realize the constant temperature control of room temperature, be particularly suitable for use in building thermal-insulation energy-saving field.
In terms of the temperature range of accumulation of heat, can be divided into high temperature, in the gentle class of low temperature 3.High temperature phase change material (pcm) is mainly some fuse salts, metal alloy;Middle temperature phase-change material is mainly some hydrated salts, organic matter and high polymer material；Low-temperature phase-change material is mainly water and hydrogel.
In terms of the chemical composition of material, inorganic (Inorganic) phase-change material, organic (Organic) phase-change material and the class of combined phase-change material three can be divided into.Inorganic phase-changing material mainly includes crystalline hydrate salt（Hydrated), the inorganic matter such as fuse salt, metal alloy；Organic phase change material mainly includes the organic matters such as paraffin (Paraffin Wax), carboxylic acid, ester, polyalcohol；Combined phase-change material is mainly the mixture of organic and inorganic co-melting phase-change material.
From heat-accumulating process in terms of material phase, solid-liquid phase change material, solid-solid phase change material, solid-gas reaction material and liquid-gas phase transition material can be divided into.Due to latter two phase transformation mode in phase transition process be accompanied by a large amount of gases presence, change greatly material volume, although therefore they have very big enthalpy of phase change, be rarely used in engineer applied.Solid-liquid phase change material mainly includes hydrated salt and paraffin etc., and it is in engineer applied more than solid-gas reaction material and liquid-gas phase transition material but less than solid-solid phase change material.Current glue Nang micro- to solid-liquid phase change material in the world exploitation causes the application field of solid-liquid phase change material constantly to expand, and the present invention is that the cooling to battery core is realized using this state-of-the-art technology.Do not occur the transformation of phase during solid-solid phase change material phase transformation, but the crystal formation of phase-change material is changed, the absorption and releasing for having heat in crystal formation change procedure.Solid-solid phase change material mainly includes high density polyethylene (HDPE), polyalcohol and the metallo-organic compound with " laminated perovskite " crystal structure.Solid-solid phase change material has been widely used for the fields such as energy-conservation, textile and the military affairs of industry and civil buildings and air-conditioning.
4th, the composition of lithium battery electric core
The physical arrangement of lithium battery electric core mainly has three kinds：Cylinder, square casing, square software.No matter which kind of shape, its core component by positive pole, positive terminal, negative pole, negative pole end, diaphragm paper, electrolyte and housing material constitute.
Cylindrical battery core is to be closely wound into cylindrical shape after positive pole, diaphragm paper, negative pole overlap, and is put into cylindrical shell and is filled with electrolyte and is sealed to form, as shown in Figure 1.
Square casing and the electrode of square software battery core it is overlapping have various ways as shown in Fig. 2
Such as：Pellet electrode diaphragm paper takeup type, pellet electrode are stacked, full wafer electrode takeup type etc., then overlapping good electrode is put into is filled with electrolyte in metal shell or software polymer pouches and is sealed to form.
The material of the available positive and negative electrode of lithium battery and electrolyte has many kinds, will not be repeated here.
Effect of the diaphragm paper in lithium ion battery is that positive and negative pole material is isolated.The quality of diaphragm paper directly have impact on security performance and capacity of battery etc..Diaphragm paper generally has two types:First, from polypropylene PP, polythene PE, the laminated spelling diaphragm papers of polypropylene PP tri-, this type diaphragm paper feature is to reduce cost, but manufacturing process is complicated, and its quality is more stable.Multilayer composite membrane combines PE and PP advantage, with more preferable mechanical strength, and PE can play a part of fuse wire between being clipped in two layers of PP, and more preferable safeguard protection is provided for battery.Second, individual layer polyalkene diaphragm, this type diaphragm paper is due to being individual layer, therefore production cost is higher, but is particularly had ready conditions with lower diaphragm plate to manufacturing ultra-thin 16um.Have started to use in the world at present and silicate is coated with diaphragm paper（Ceramics）The technique of material, can greatly improve the resistance to elevated temperatures of diaphragm paper.The present invention is related to this field.
(1) Large Copacity battery core can produce a large amount of heat energy within a short period of time during fast charging and discharging, and this heat energy can not be shed in time due to the overlapping or winding of multi-layered electrode and diaphragm paper, cause the temperature of battery core core to be higher than skin temperature, reduce the service life of battery.
(2) method of all battery temperature controls at present all concentrates on battery core external cooling, there is no any practical method to realize temperature control inside battery core, this allows for Large Copacity battery core, the cooling of the especially core of square casing battery core becomes relatively difficult, cause the internal-external temperature difference of same battery core, the computational accuracy of battery charge state value is reduced, and then influences the overall performance and stability of battery.The content of the invention
The embodiments of the invention provide a kind of method for realizing lithium battery electric core internal temperature control, to stablize battery core internal temperature, by any point on electrode under conditions of any energy is not consumed
Temperature is maintained within design temperature and makes battery core internal temperature long-time stable in the design temperature of selected phase-change material.
To reach above-mentioned purpose, on the one hand the embodiment of the present invention provides a kind of method for realizing lithium battery electric core internal temperature control, including：
According to selecting phase-change material the need for battery core and set phase point temperature；
Select the model of phase-change material according to the phase point temperature of the setting and mixed with silicate material and be coated on diaphragm paper or negative pole.
Stablize nuclear temperature in battery core by way of being coated on to the present invention using novel phase-change material on battery core negative pole plate surface or diaphragm paper, when electrode temperature reaches phase transition temperature, phase-change material can largely absorb heat energy, make battery core internal temperature long-time stable on the design temperature of selected phase-change material.At the same time, the system also has the advantages that to be incubated for battery core group at low ambient temperatures.The present invention's is unique in that heat-absorbing material is coated on all there may be in the electrode plane of heat, therefore can ensure that the temperature difference at position any between multi-lay winding or overlapping battery lead plate certain time Nei is minimum.This is that all other battery core cooling method institute is inaccessiable at present.
Brief description of the drawings
For the technical scheme of the clearer explanation embodiment of the present invention, the accompanying drawing used required in being described below to embodiment is briefly described, obviously, drawings in the following description are only some embodiments of the present invention, for those of ordinary skill in the art, on the premise of not paying creative work, other accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 is cylindrical core strueture schematic diagram in the prior art；
Fig. 2 is square electric cell structural representation in the prior art；
Fig. 3 realizes lithium battery electric core method for controlling internal temp block diagram for one kind of the embodiment of the present invention；
Fig. 4 is diaphragm paper position view of the embodiment of the present invention；
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention; clear, complete description is carried out to the technical scheme in the embodiment of the present invention; obviously described embodiment is only a part of embodiment of the present invention; the embodiment being not all of; based on the embodiment in the present invention; the every other embodiment that those of ordinary skill in the art are obtained under the premise of creative work is not paid, belongs to the scope of protection of the invention.
Large Copacity battery core can produce a large amount of heat energy within a short period of time during fast charging and discharging, and this heat energy can not be shed in time due to the overlapping or winding of multi-layered electrode and diaphragm paper, cause the temperature of battery core core to be higher than skin temperature.Higher than skin temperature, this phenomenon can reduce the service life of battery to the temperature of above-mentioned battery core core knowable to the relation of battery core life-span and temperature according to background technology 1, and the existing cool-down method according to background technology 2, the temperature of Large Copacity battery core core can not be effectively reduced again, employ new solid-liquid state phase transformation Ao's glue Nang mode to realize the temperature control of core so we propose herein.Just it is blunt according to battery core the need for set phase point temperature, the model of micro- glue Nang phase-change materials, and and silicate are selected further according to the phase transition temperature（Ceramics）Material mixing is coated on diaphragm paper or negative pole.When battery core internal temperature reaches set point, micro- glue Nang phase-change materials in the coating are that can switch to liquid by solid-state, and amount of heat is absorbed in phase transition process, any point temperature on electrode can be so maintained within design temperature under conditions of any energy is not consumed, until all micro- glue Nang phase-change materials in transformation temperature heat absorption reach saturation.
On the one hand embodiments of the invention provide a kind of method for realizing lithium battery electric core internal temperature control, and step is implemented as shown in Figure 3 to be included：
Step S1:According to selecting phase-change material the need for battery core and set phase point temperature.The present invention uses new micro- glue Nang solid-liquids state phase-change material, because the optimum operating temperature of lithium battery is between 15 to 40 spend, therefore the temperature of phase-change material is set in the interval of said temperature.
Step S2:The model and and silicate of micro- glue Nang phase-change materials are selected according to the temperature of the phase-change material set in step S1（Ceramics）Material is mixed to form the mixture of the two.Phase-change material and silicate（Ceramics）Material is just not influence the heat endurance of the higher battery core of phase-change material proportion in the security performance of battery core, mixture better by proper proportion mixing, and current experimental result ratio can reach between 15% to 35%.
Step S3:By phase-change material and silicate（Ceramics）Mixture is coated on diaphragm paper or negative pole.Selected after micro- glue Nang phase-change materials, be determined by experiment and other silicate further according to method and step S2 according to above method step S1（Ceramics）Final mixture, is then sufficiently mixed and is coated with, is adsorbed on diaphragm paper or is coated on negative pole by the mixed proportion of material by modes such as stirring, vibrations.
Step S4:The diaphragm paper for scribbling phase-change material is made into battery core.Normal battery core assembly program can be observed by making battery core, but fill leaching time and charge finally to adjust electrolyte, and because different battery core capacity are different with shape, specific adjustment amount need to be determined according to experimental data.
Stablize nuclear temperature in battery core by way of being coated on to the present invention using novel phase-change material on battery core negative pole plate surface or diaphragm paper, when electrode temperature reaches phase transition temperature, phase-change material can largely absorb heat energy, make battery core internal temperature long-time stable on the design temperature of selected phase-change material.At the same time, the system also has the advantages that to be incubated for battery core group at low ambient temperatures.
Below by the selection for realizing the phase-change material in lithium battery electric core internal temperature control in embodiment one.Phase-change material and silicate（Ceramics）Mixed proportion and the method for mixture coating do further more detailed description.
1st, the selection of phase-change material
Stock Nang phase-change materials (microencapsulated phase change material, MEPCM it is) that phase-change material (PCM) is encapsulated in that matter is close and in polymer shell with certain elasticity by micro- glue Nang technologies of preparing, the particle diameter of MEPCM particles is 1 100 μ π ι, MEPCM shell can separate the core (PCM) of solid-liquid state with external substance, and it is that one kind can bear the novel phase-change material of Volume Changes caused by core phase transformation (expansion/contraction).Because the solid-liquid state phase transformation adsorbent is wrapped in miniature glue Nang, so being in still after the phase change microparticle shape, it will not be dissolved in after liquefaction in electrolyte as common phase-change material.Micro- glue Nang phase-change materials have a large amount in variety and model, but because the optimum operating temperature of lithium battery is between Celsius 15 to 40 spend, the design temperature of phase-change material can be set in this interval.No matter solid-liquid state phase transformation adsorbent is made up of which kind of chemical composition in micro- glue Nang, and the present invention should apply to any phase transformation sorbent material between the temperature range.On the premise of other technologies, use requirement is met, selected micro- glue Nang size is the smaller the better（Less than 10um), it is sometimes warm
The setting of degree point can make some appropriate changes according to existing finished product model.
2nd, phase-change material and silicate（Ceramics）The mixed proportion of material
Due to being coated with silicate on diaphragm paper or negative pole（Ceramics）It is while electron ion is passed through between ensureing battery lead plate, to strengthen the security performance of battery core, so the ratio of phase-change material will be achieved on the premise of this basic mesh ground is not influenceed the mesh of material.Phase-change material proportion is higher in certain mixture, and the heat endurance of battery core is better, and according to current experimental result, the ratio can reach between 15% to 35%.With silicate（Ceramics) material the exploitation updated with novel electrolyte, this ratio is also possible to change, therefore the present invention should apply to mixed proportion that any one is more than zero.
3rd, phase-change material and silicate（Ceramics）Coating method of the mixture on diaphragm paper determines itself and other silicate after micro- glue Nang phase-change materials are selected, and according to experiment（Ceramics）Final mixture can be sufficiently mixed by modes such as stirring, vibrations after the mixed proportion of material and be coated with, be adsorbed on diaphragm paper, be illustrated in figure 4 diaphragm paper position view.Its coating method includes dipping, absorption, spraying, roller coating, blade coating etc..Diaphragm paper is subjected to subsequent treatment after coating, because the drying process that now diaphragm paper is had been coated with micro- glue Nang phase-change materials, subsequent treatment should avoid using high temperature heat-force dry.Also note that the thickness of coating, the diaphragm paper thickness after coating should be between 10 to 100 4 Aos rice.
Except above-mentioned coating or the method being adsorbed on diaphragm paper also include other coating methods.Phase-change material and silicate（Ceramics）Mixture can also be directly coated on positive and negative electrode material by methods such as spraying, roller coating, blade coatings, used cooperatively with common diaphragm paper, it might even be possible to thoroughly substitute diaphragm paper with the coating.Because decalescence material is coated on all there may be in the electrode plane of heat, therefore it can ensure that the temperature difference at position any between multi-lay winding or overlapping battery lead plate certain time Nei is minimum.
Stablize nuclear temperature in battery core by way of being coated on to the present invention using novel phase-change material on battery core negative pole plate surface or diaphragm paper, when electrode temperature reaches phase transition temperature, phase-change material can largely absorb heat energy, make battery core internal temperature long-time stable on the design temperature of selected phase-change material.At the same time, the system also has the advantages that to be incubated for battery core group at low ambient temperatures.And by the implementation of the present invention, it is that square electric cell carries out the temperature controlled brand new ideas of Non-energy-consumption to have started with phase-change material, adds the security of square Large Copacity battery core and uses the longevity
Life, the environment temperature for extending battery core application is interval, is with a wide range of applications in terms of civilian, space flight, military project.
Disclosed above is only several specific embodiments of the present invention, and still, the present invention is not limited to this, and the changes that any person skilled in the art can think of should all fall into protection scope of the present invention.
Claims (1)
- Claim1st, a kind of method for realizing lithium battery electric core internal temperature control, it is characterised in that including：According to selecting phase-change material the need for battery core and set phase point temperature；Select the model of phase-change material according to the phase point temperature of the setting and mix it with silicate material and be coated on diaphragm paper or negative pole.2nd, the method as claimed in claim 1 for realizing lithium battery electric core internal temperature control, it is characterised in that the phase-change material is the micro- glue Nang of new solid-liquid state phase transformation.3rd, the method as claimed in claim 2 for realizing lithium battery electric core internal temperature control, it is characterised in that the size of the micro- glue Nang of phase transformation should be less than 10 microns.4th, the method as claimed in claim 1 for realizing lithium battery electric core internal temperature control, it is characterised in that the phase point temperature of the setting is between 15 to 40 spend.5th, the method as claimed in claim 1 for realizing lithium battery electric core internal temperature control, it is characterised in that the method for realizing lithium battery electric core internal temperature control adapts to the interval phase transformation sorbent material of any operating temperature suitable between lithium battery.6th, the method as claimed in claim 1 for realizing lithium battery electric core internal temperature control, it is characterised in that the phase-change material is mixed in proportion with silicate material, and the ratio of phase-change material is more than zero in mixture.7th, the method as claimed in claim 1 for realizing lithium battery electric core internal temperature control, it is characterised in that the concrete mode that phase-change material is coated on diaphragm paper or negative pole with silicate includes：It is sufficiently mixed and is coated with by stirring, mode of vibration, is adsorbed on diaphragm paper；It is directly coated at by spraying, roller coating, blade coating mode on positive and negative electrode material.8th, the method as claimed in claim 7 for realizing lithium battery electric core internal temperature control, it is characterised in that the coating method being coated on diaphragm paper includes：Dipping, absorption, spraying, roller coating, blade coating.9th, the method as claimed in claim 1 for realizing lithium battery electric core internal temperature control, it is characterised in that the diaphragm paper thickness after coating should be between 10 microns to 100 microns. 10th, the method as claimed in claim 1 for realizing Lithium battery battery core internal temperature controls, it is characterized in that, phase-change material and silicate are coated on after diaphragm paper, the diaphragm paper for scribbling phase-change material is made into battery core and observes normal battery core assembly program, in addition it is also necessary to adjusts electrolyte and fills leaching time and charge.
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| CN201180072510.4A CN103733420A (en) | 2011-06-09 | 2011-07-08 | Method for controlling temperature inside lithium battery electric core |
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| CN201110153479.9 | 2011-06-09 | ||
| CN201110153479 | 2011-06-09 | ||
| PCT/CN2011/077007 WO2012167470A1 (en) | 2011-06-09 | 2011-07-08 | Method for controlling temperature inside lithium battery electric core |
| CN201180072510.4A CN103733420A (en) | 2011-06-09 | 2011-07-08 | Method for controlling temperature inside lithium battery electric core |
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| CN105514521A (en) * | 2015-12-07 | 2016-04-20 | 湖南立方新能源科技有限责任公司 | Lithium ion battery with temperature regulation function |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1993846A (en) * | 2004-08-06 | 2007-07-04 | 株式会社Lg化学 | Battery system containing phase change materia containing capsules in interior configuration thereof |
| WO2011063132A1 (en) * | 2009-11-18 | 2011-05-26 | A123 Systems, Inc. | Composite separator for electrochemical cell and method for its manufacture |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7443136B2 (en) * | 2002-01-09 | 2008-10-28 | Quallion Llc | Method and device employing heat absorber for limiting battery temperature spikes |
| CN1870347A (en) * | 2005-05-27 | 2006-11-29 | 比亚迪股份有限公司 | Battery bag with temp regulating function |
| CN2927335Y (en) * | 2006-04-26 | 2007-07-25 | 有量科技股份有限公司 | Battery with heat absorber |
-
2011
- 2011-07-08 WO PCT/CN2011/077007 patent/WO2012167470A1/en active Application Filing
- 2011-07-08 CN CN201180072510.4A patent/CN103733420A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1993846A (en) * | 2004-08-06 | 2007-07-04 | 株式会社Lg化学 | Battery system containing phase change materia containing capsules in interior configuration thereof |
| WO2011063132A1 (en) * | 2009-11-18 | 2011-05-26 | A123 Systems, Inc. | Composite separator for electrochemical cell and method for its manufacture |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107946487A (en) * | 2017-11-15 | 2018-04-20 | 江苏华富储能新技术股份有限公司 | A kind of storage battery protective housing containing phase-changing energy storage material |
| CN112542626A (en) * | 2019-09-20 | 2021-03-23 | 北京小米移动软件有限公司 | Built-in battery of mobile terminal and preparation method |
| CN111009678A (en) * | 2019-12-31 | 2020-04-14 | 广东博龙能源科技有限公司 | Battery manufacturing process for improving battery safety |
| CN112259830A (en) * | 2020-10-28 | 2021-01-22 | 辽宁九夷锂能股份有限公司 | Lithium battery capable of starting discharge at low temperature and preparation method thereof |
| CN117766908A (en) * | 2023-12-11 | 2024-03-26 | 武汉理工大学 | Low-temperature heat management system and battery of solid-solid composite phase change material embedded lithium battery |
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